The Port Talbot Steelworks Generating Station Order 2015

Detailed design

4.—(1) Subject to sub-paragraph (3), the elements of the authorised development set out in column 1 of Table A—

(a) must not exceed the maximum dimensions set out in relation to that element in columns 2 to 4; and

(b) must comply with the other parameters set out in relation to that element in column 5.

Table A

(1)	(2)	(3)	(4)	(5)
Element of authorised development	Maximum height (metres)	Maximum width (metres)	Maximum length (metres)	Other parameters
Stacks	80	-	-	Maximum of 2. Minimum height of 80 metres.
Cooling tower unit	22	25	160	Maximum area of 2,560 square metres. Maximum volume of 56,320 cubic metres.
Turbine hall	25	85	55	Maximum area of 3,575 square metres. Maximum volume of 89,375 cubic metres.
Boiler house	35 (at apex)	65	60	Maximum area of 3,900 square metres. Maximum volume of 136,500 cubic metres.
Switchgear station	20	55	35	-
Administration and control building	12	28	50	-
Water treatment plant incorporating chemical dosing skids, condensate polisher, condensate pumps and condensate storage tank	10	60	60	-
66 kilovolt electrical connection (Work No. 2(a))	-	4	-	-
Cable bridge for section of 66 kilovolt electrical connection (Work No. 2(a))	5.5	4	800	The cable bridge may only be installed for the section of Work No. 2(a) between the Grange and Cefn Gwrgan substations.
Car parking area	-	-	-	Maximum of 30 parking spaces.
Perimeter fencing	3	-	-	-

(2) Subject to sub-paragraph (3), if the authorised development is constructed in 2 stages,—

(a) the elements of the authorised development set out in column 1 of Table B constructed at the first stage—

(i) must not exceed the maximum dimensions set out in in relation to that element in columns 2 to 4; and

(ii) must comply with the other parameters set out in relation to that element in column 5; and

(b) the authorised development when completed at the second stage must not exceed the maximum dimensions and parameters set out in Table A.

Table B

(1)	(2)	(3)	(4)	(5)
Element of authorised development	Maximum height (metres)	Maximum width (metres)	Maximum length (metres)	Other parameters
Stack	80	-	-	Maximum of 1. Minimum height of 80 metres.
Cooling tower unit	22	25	80	Maximum area of 1,280 square metres. Maximum volume of 28,160 cubic metres.
Turbine hall	25	45	55	Maximum area of 2,475 square metres. Maximum volume of 61,865 cubic metres.
Boiler house	35 (at apex)	45	60	Maximum area of 2,700 square metres. Maximum volume of 94,500 cubic metres.
Switchgear station	20	55	35	-
Administration and control building	12	28	50	-
Water treatments plant incorporating chemical dosing skids, condensate polisher, condensate pumps and condensate storage tank	10	60	60	-
66 kilovolt electrical connection (Work No. 2(a))	-	4	-	-
Cable bridge for section of 66 kilovolt electrical connection (Work No. 2(a))	5.5	4	800	The cable bridge may only be installed for the section of Work No. 2(a) between the Grange and Cefn Gwrgan substations.
Car parking area	-	-	-	Maximum of 30 parking spaces.
Perimeter fencing	3	-	-	-

(3) The relevant planning authority may at the request of the undertaker approve amendments to the maximum parameters for the turbine hall and boiler house set out in columns 3 and 4 of the Tables A and B, but such approval must not be given except in relation to minor or immaterial amendments that—

(a) will not result in the parameters set out in column 5 of either Table being exceeded for the relevant building; and

(b) have been demonstrated to the satisfaction of the relevant planning authority as being unlikely to give rise to any materially new or materially different environmental effects from those assessed in the environmental statement.

(4) No stage of the authorised development may be commenced until written details of the following for that stage have been submitted to and approved by the relevant planning authority—

(a) the layout, design, external appearance, dimensions and floor levels of all permanent buildings and structures;

(b) the colour, materials and surface finishes of all permanent buildings and structures; and

(c) the durability of all cladding materials.

(5) The details to be submitted for approval under sub-paragraph (4) must—

(a) be in accordance with the design and access statement and the design principles document; and

(b) include appropriately scaled plans and sectional drawings.

(6) The authorised development must be carried out in accordance with the approved plans and any other approvals given by the relevant planning authority pursuant to this Requirement.